EFFICIENT FREQUENCY UTILIZATION TECHNIQUES FOR HIGH-CAPACITY LAND MOBILE COMMUNICATION SYSTEM.

Masayuki Sakamoto; Masaharu Hata; Teruya Fujii

EFFICIENT FREQUENCY UTILIZATION TECHNIQUES FOR HIGH-CAPACITY LAND MOBILE COMMUNICATION SYSTEM.

Masayuki Sakamoto, Masaharu Hata, Teruya Fujii

Faculty of Engineering

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

This paper discusses techniques for frequency utilization factor improvement in the High-Capacity Land Mobile Communication System under development at NTT. It is shown that a channel separation of 12. 5 kHz miximizes the frequency utilization factor in terms of both of available channel number and geographical reuse. Improvement in both tolerance against interference and geographical reuse factor is quantitatively discussed for diversity reception. It is also shown that an interference reduction of about 3db can be achieved via detection of increased interference and changing of radio channels to lower the interference.

Original language	English
Pages (from-to)	989-997
Number of pages	9
Journal	Denki Tsushin Kenkyujo kenkyu jitsuyoka hokoku
Volume	35
Issue number	10
Publication status	Published - Dec 1 1986

ASJC Scopus subject areas

Engineering(all)

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title = "EFFICIENT FREQUENCY UTILIZATION TECHNIQUES FOR HIGH-CAPACITY LAND MOBILE COMMUNICATION SYSTEM.",

abstract = "This paper discusses techniques for frequency utilization factor improvement in the High-Capacity Land Mobile Communication System under development at NTT. It is shown that a channel separation of 12. 5 kHz miximizes the frequency utilization factor in terms of both of available channel number and geographical reuse. Improvement in both tolerance against interference and geographical reuse factor is quantitatively discussed for diversity reception. It is also shown that an interference reduction of about 3db can be achieved via detection of increased interference and changing of radio channels to lower the interference.",

author = "Masayuki Sakamoto and Masaharu Hata and Teruya Fujii",

year = "1986",

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AU - Hata, Masaharu

AU - Fujii, Teruya

PY - 1986/12/1

Y1 - 1986/12/1

N2 - This paper discusses techniques for frequency utilization factor improvement in the High-Capacity Land Mobile Communication System under development at NTT. It is shown that a channel separation of 12. 5 kHz miximizes the frequency utilization factor in terms of both of available channel number and geographical reuse. Improvement in both tolerance against interference and geographical reuse factor is quantitatively discussed for diversity reception. It is also shown that an interference reduction of about 3db can be achieved via detection of increased interference and changing of radio channels to lower the interference.

AB - This paper discusses techniques for frequency utilization factor improvement in the High-Capacity Land Mobile Communication System under development at NTT. It is shown that a channel separation of 12. 5 kHz miximizes the frequency utilization factor in terms of both of available channel number and geographical reuse. Improvement in both tolerance against interference and geographical reuse factor is quantitatively discussed for diversity reception. It is also shown that an interference reduction of about 3db can be achieved via detection of increased interference and changing of radio channels to lower the interference.

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